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Hardwire key into ecu and use a generic marine lanyard kill switch. Best thing I've ever come up with. Not a single hickup ever again! I wrote an article about it on here already, as well as ECU DELETE 😉 Bad DESS post????

Here's the finished dess bypass video

Lanyard kill diagram if using the above new stop circuit:

If anyone has any carborated engine and wants to remove the ecu entirely, first understand the basics and follow the directions below: For the engine to run it needs first, 1 fuel: (mechanically done and timed by the thin metal disc behind the carbs) we are good there. 2 Spark : Mechanically...

Lanyard kill using a generic marine kill switch and lanyard (normally open), between the yellow/black and number 3.

This was my test circuit using the key internals:

97 Seadoo gsi owned 3 years and burnt myself out with the terrible dess key issues. This evening I finally took time to figure out how to wire in my dess key permanently and also wired in a generic marine kill switch and lanyard (needs to be normally open). Everything works perfectly...

Bypass that dang dess post!

See my posts for detailed instructions here: Bad DESS post???? I hope everyone eventually gets to say goodbye to the dess security system

Best advice I've ever got, ain't broke don't fix it! ❤️

Stop circuit

If anyone is going to do this and bypass the MPEM entirely, ask and I'll take the time to write up a really nice legible electrical diagram in full detail.

Start circuit

Lanyard kill

In blue on left

For the engine to run it needs first, fuel: (mechanically done and timed by the thin metal disc behind the carbs) we are good there. Spark : Mechanically timed and sent by the flywheel coils/magnets. We are good there, just cut and run the 2 wires from the stator directly to the coil and then...

I know I searched everywhere online for anyone to share the secret but no one's done it or claims it's not possible. I had to share I really feel for all the many dess owners out there. Everything is possible if you put your mind to it. 🤔

But honestly, with the dess issue out of the way, I don't even care to bypass it since it's working flawlessly now. That damn dess...